Method of manufacturing master link

Abstract

Disclosed herein is a method of manufacturing a master link which connects ends of track chains of an endless track to each other. More particularly, the present invention relates to a method of manufacturing a master link which includes a pair of partial link units that are separably coupled to each other, and which can markedly enhance the degree of precision in machining the partial link units and the quality of the product. The method includes forming a wire-cutting reference hole at a predetermined position in the master link so that a wire is inserted into the wire-cutting reference hole, and forming the first and second partial link units by wire-cutting after inserting the wire into the wire-cutting reference hole.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates generally to master links which connect ends of track chains of endless tracks to each other and, more particularly, to a method of manufacturing a master link which includes a pair of partial link units that are separably coupled to each other, and which can markedly enhance the degree of precision in machining the partial link units and the quality of the product.[0003]2. Description of the Related Art[0004]Endless tracks are used in crawler type vehicles, such as bulldozers or excavators. Such an endless track includes a plurality of track chain links which are rotatably connected one after another. A track shoe is provided on each track chain link. Ends of the track chain links are removably connected to each other by master links.[0005]Such a master link for an endless track is an element which connects corresponding ends of the track chain links to each other. The master link includes...

AI Technical Summary

Benefits of technology

[0009]Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a method of manufacturing a master link which can reduce a cutting error of assembly portions of partial link units, thus enhancing the degree of precision and the quality of the product.

[0015]In the present invention, after a wire-cutting reference hole is formed at a predetermined position in the master link, the wire-cutting is conducted based on the wire-cutting reference hole such that an operation of forming the inside contour of the master link precedes an outside contour forming operation. Thereby, a cutting error in forming the assembly portions of partial link units can be markedly reduced, thus enhancing the degree of precision and the quality of the product.

Problems solved by technology

However, in the conventional master link manufacturing method, only wire-cutting is used when dividing the master link into the two partial link units and forming the assembly portions of the partial link units.

Therefore, process speed is comparatively low and cutting error is increased, thus reducing the degree of precision and the quality of the product.

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